### Steps to reproduce
1. Unknown. I don't know how it happened in the first pl…ace
2.
3.
### Expected behaviour
When I delete a calendar, it should be deleted from the database.
### Actual behaviour
I recently imported my Google Calendar using the Google Integration app. Worked beautifully, except that it tried to import an external calendar that I’m subscribed to. Now that calendar is stuck in the list. It can't be deleted, can't be renamed, can’t even be repositioned. The calendar does not display anything.
I don’t get anything particularly interesting (I don’t think) in NextCloud logs, however when I try to delete it through DAVx5, the error below is given. It looks to me that the calendar name is that of the URL of the external calendar, and the "/" in the name is confusing the database. However, this is far from my area of expertise, so I could be way off.
Has anyone seen this before? Is there a solution that would allow me to delete this calendar for good?
Thanks.
### Calendar app
**Calendar app version:** 2.1.3
**CalDAV-clients used:** DAVx5
### Client configuration
**Browser:** Firefox, Chrome, Brave
**Operating system:** Windows, Android
### Server configuration
**Operating system**: Ubuntu 14
**Web server:** Apache
**Database:** SQLite
**PHP version:** 7.2
**Nextcloud Version:** 20.0.7
**Updated from an older installed version or fresh install:** Updated
**List of activated apps:** Accessibility 1.6.0, Activity 2.13.4, Calendar 2.1.3, Collaborative tags 1.10.0, Contacts 3.4.3, Contacts Interaction 1.1.0, Dashboard 7.0.0, Deleted files 1.10.1, Federation 1.10.1,
File sharing 1.12.2, First run wizard 2.9.0, Flow Upload 1.1.2, Log Reader 2.5.0, Mail 1.6.0, Monitoring 1.10.0, Nextcloud announcements 1.9.0, Notes 4.0.2, Notifications 2.8.0,
Password policy 1.10.1, PDF viewer 2.0.1, Photos 1.2.3, Privacy 1.4.0, Recommendations 0.8.0, Right click 0.17.0, Share by mail 1.10.0, Support 1.3.0, Text 3.1.0, Theming 1.11.0,
Update notification 1.10.0, Usage survey 1.8.0, User status 1.0.1 Versions 1.13.0, Video player 1.9.0, Weather status
```
If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your instance's installation folder
```
**Nextcloud configuration:**
```
<?php
$CONFIG = array (
'instanceid' => 'asdf'
'passwordsalt' => 'asdf'
'secret' => 'asdf'
'trusted_domains' =>
array (
0 => 'my.domain.com',
),
'datadirectory' => '/home/my_username/my.domain.com/data',
'dbtype' => 'sqlite3',
'version' => '20.0.7.1',
'overwrite.cli.url' => 'http://my.domain.com',
'installed' => true,
'mail_from_address' => 'noreply',
'mail_smtpmode' => 'smtp',
'mail_sendmailmode' => 'smtp',
'mail_domain' => 'my.domain.com',
'mail_smtpauth' => 1,
'mail_smtpauthtype' => 'LOGIN',
'mail_smtphost' => 'asdf',
'mail_smtpname' => 'asdf',
'mail_smtppassword' => 'asdf',
'mail_smtpsecure' => 'ssl',
'mail_smtpport' => '465',
'maintenance' => false,
'theme' => '',
'loglevel' => 1,
);
```
### Logs
#### Web server error log (e.g. /var/log/apache)
```
Don't have access
```
#### Log file (data/nextcloud.log)
```
[PHP] Error: PHP Startup: memcached.sess_lock_wait and memcached.sess_lock_max_wait are deprecated. Please update your configuration to use memcached.sess_lock_wait_min, memcached.sess_lock_wait_max and memcached.sess_lock_retries at Unknown#0
at 2021-02-23T20:46:10+00:00
[no app in context] Info: Deprecated event type for OCP\IDBConnection::CHECK_MISSING_COLUMNS: Symfony\Component\EventDispatcher\GenericEvent is used
GET /index.php/settings/ajax/checksetup
from 70.73.65.251 by asdfat 2021-02-23T20:45:58+00:00
[no app in context] Info: Deprecated event type for {"[object] (OCP\SabrePluginEvent)":{"*statusCode":200,"*message":"","*server":{"[object] (OCA\DAV\Connector\Sabre\Server)":{"tree":"[object] (OCA\DAV\Connector\Sabre\ObjectTree)","*baseUri":"/remote.php/webdav/","httpResponse":"[object] (Sabre\HTTP\Response)","httpRequest":"[object] (Sabre\HTTP\Request)","sapi":"[object] (Sabre\HTTP\Sapi)","*plugins":[],"transactionType":null,"protectedProperties":{"...":"Over 20 items, aborting normalization"},"debugExceptions":false,"resourceTypeMapping":[],"enablePropfindDepthInfinity":true,"xml":"[object] (Sabre\DAV\Xml\Service)","*listeners":{"...":"Over 20 items, aborting normalization"},"*wildcardListeners":[],"*listenerIndex":[],"*logger":null}},"Symfony\Contracts\EventDispatcher\EventpropagationStopped":false}}: null
PROPFIND /remote.php/webdav
from 70.73.65.251 by at 2021-02-23T20:45:56+00:00
```
#### Browser log
```
Insert your browser log here, this could for example include:
a) The javascript console log
b) The network log
c) ...
```
#### DAVx5 Returned Error Code
```
HTTP REQUEST Request{method=DELETE, url=https://my.url.com/remote.php/dav/calendars/my_username/https://www.external_calendar_url.com/calendar/ical/private_info.ics%3f%private_info%20(Google%20Calendar%20import)/, headers=[Accept-Encoding:br,gzip]}
HTTP RESPONSE Response{protocol=h2, code=404, message=, url=https://my.url.com/remote.php/dav/calendars/my_username/https://www.external_calendar_url.com/calendar/ical/private_info.ics%3f%private_info%20(Google%20Calendar%20import)/} <?xml version="1.0" encoding="utf-8"?> <d:error xmlns:d="DAV:" xmlns:s="http://sabredav.org/ns"> <s:exception>Sabre\DAV\Exception\NotFound</s:exception> <s:message>Node with name 'https:' could not be found</s:message></d:error>
```